827621763606 has 36 divisors (see below), whose sum is σ = 1971016574436. Its totient is φ = 250794473160.

The previous prime is 827621763589. The next prime is 827621763607. The reversal of 827621763606 is 606367126728.

827621763606 is a `hidden beast` number, since 8 + 2 + 7 + 6 + 21 + 7 + 6 + 3 + 606 = 666.

It is a super-2 number, since 2×827621763606² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827621763607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 189993636 + ... + 189997991.

It is an arithmetic number, because the mean of its divisors is an integer number (54750460401).

Almost surely, 2^827621763606 is an apocalyptic number.

827621763606 is an abundant number, since it is smaller than the sum of its proper divisors (1143394810830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

827621763606 is a wasteful number, since it uses less digits than its factorization.

827621763606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379991657 (or 379991643 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 827621763606 in words is "eight hundred twenty-seven billion, six hundred twenty-one million, seven hundred sixty-three thousand, six hundred six".